Check out this quick-hit rundown of the basic steps to unwrap a pinned canoe, presented by Boreal River Rescue and Five 2 Nine productions: Make sure everyone is safe; get to the boat quickly and safely, making sure to approach it from downstream; attach a control line; and pull. That is, work from simple to complex by lifting on the side with less water. Perhaps try using a log to gain leverage. Also, pull from different angles from a key anchor point, switching the control line to a bridle configuration if necessary. Finally, if all else fails, set up a mechanical-advantage drag system with the appropriate gear.